The Texas Zephyr trainsets had an upgraded heavyweight diner to protect dining service when the regular dining cars were bad ordered. #263 was an unnamed car painted silver to somewhat match the E G Budd cars which formed the majority of the TZ.
This Atlas offering came lettered as #171 and featured no roof detail:
The BURLINGTON lettering is not crisp, yet I left it alone. New lettering for ownership, car type, and car number were added in the correct font. As with most everything I do, "it ain't exact", but I like it.
top photo: Steve Goen collection.